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In web application when a developer wants to store any thing for user to use it again, he thinks of two ways: one is the client side and the other is the server side. The server storage is a good solution if we think about large data but if we want our application to work offline there is no way to manipulate server data without using client side storage.

So, for small amount of data that needs to stay at the client side where poor solutions are present like cookies, userData – IE special object, Google gears. The last two are browser specific which means they will not work in any browser, while cookies work in all browsers it suffers from serious limitations like:

Small size, up to 4kb per cookie and 20 cookies accepted from a particular server or domain.

It may be cleaned by user.

Consumes bandwidth, because it is included in every request header. Continue Reading

Information stored in the database systems become more and more valuable day after day. Therefore, the role of the Database Administrator (DBA) become more and more critical. That is one of the main reasons the DBA, this means you, have to configure Oracle Database effectively and practice the backup and recovery process in order to be 100% sure to master it.

In this series, I will go with the DBA from the novice to expert. We will begin by configuring the Oracle Database 11g correctly, and then we will go through various scenarios of the backup and recovery of your Oracle Database. Finally, we will go through the necessary steps to configure an Oracle Data Guard environment, which will protect you if you completely lost your primary site and give you more ROI as well.

Lately, Google launched the new social network recommendation button called Google +1 Button. The +1 button can be used by users to recommend contents for their friends in search results. As a blogger, you want to add this new social gadget to your blog to enable your readers to recommend your posts in search results, in other words reach more readers through search results. The easiest way to add Google +1 Button to your posts is to use a plugin, like the Easy Google +1 Plugin launched with article, or to build your own as you will learn by continue reading this article.

Today, Google launched the +1 button for the entire web, which make it easier for users with just one click to recommend contents to their friends in search results, all that with a single click. When you use Google’s +1 button to recommend an article, product or any other content, then the next time people in your social network search they will see your +1’s recommendations in their search results. So, I decided to write an article about how to add Google +1 button to your posts and gives your visitors the ability to recommend your articles in search results. Continue Reading

User Input and Notification Messages are one of the most important things in Interactive Applications, and mobile applications is one type of these applications. In this article you will learn how to use the text field and alert UI components to create the “User Registration” J2ME application. The text field is an editable text component that is used to accept input from user. On the other hand, The alert is a displayable screen that is used to present various kinds of information to the user for a certain period of time before proceeding to the next displayable. Continue Reading